KiCAD Designs
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some of my work. This one’s an AVR trainer board.
More about the Stem Turtle 
 An MWPC with built in preamplifiers 
 An environment monitor 
 3 phase power monitor 
 Inter digitated electrode on a flex PCB with on board amplifier 
 
 PCB with 50pS resolution 
 My wedding Card 
 Time to digital converter, 100pS resolution 
 alternate card with CH32v003 
 
 Pycon badge efforts 
 consulting for a digital trainer 
 
 A 10MSPS Multi Channel Analyzer 
 Work by some of my students 